Shopping Podder - the Best of Computer Postings! :: View topic - How do you define "instance" in WordNet ?

Keenlearner · Guest

Hello I have just read the paper www.aclweb.org/anthology-new/J/J06/J06-1001.pdf
about instances in WordNet.
It talk about the how the instances in WordNet is defined,

according to them
There are three characteristics that all words denoting instances
share. They are,
first of all, nouns. Second, they are proper nouns, which means that
they should be
capitalized. And finally, the referent should be a unique entity,
which implies that they
should not have hyponyms; it is meaningless to have an instance of an
instance.

But then I don't understand why
The names of numbers and the names of monetary units were all
considered as
classes; the Hong Kong dollar, for example, is not an instance of
dollar.

How can we define "instance" besides the way WordNet did ? Any more
ways ?

Thanks


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